How Are Shoelaces Like Pulleys?


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jade answered
When you put a shoelace through an eyelet, what do you do next?  You bring it back in the direction from which it came. . . And then you pull to tighten it.  You put two pulls on each eyelet, just like the cord through the loop, or a belt through a buckle.  It's fun to tie bundles tightly with the aid of a loop.  It's even more fun when you know why  you put shoelaces through an eyelet, and why you put a cord through a loop!

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